assertHashBytesThrowsCorrectExceptions(hashFunction);
    assertIndependentHashers(hashFunction);
    assertShortcutsAreEquivalent(hashFunction, 512);
  }

  static void assertHashByteBufferInvariants(HashFunction hashFunction) {
    assertHashByteBufferMatchesBytes(hashFunction);
    assertHashByteBufferExhaustsBuffer(hashFunction);

    }

    InetAddress localAddr;
    int localPort;
    UniAddress address;
    Socket socket;
    int port, mid;
    OutputStream out;
    InputStream in;
    byte[] sbuf = new byte[512]; /* small local buffer */
    SmbComBlankResponse key = new SmbComBlankResponse();
    long sessionExpiration = System.currentTimeMillis() + SO_TIMEOUT;
    LinkedList referrals = new LinkedList();

            assertEquals(32, samr.ACB_MNS);
            assertEquals(64, samr.ACB_DOMTRUST);
            assertEquals(128, samr.ACB_WSTRUST);
            assertEquals(256, samr.ACB_SVRTRUST);
            assertEquals(512, samr.ACB_PWNOEXP);
            assertEquals(1024, samr.ACB_AUTOLOCK);
            assertEquals(2048, samr.ACB_ENC_TXT_PWD_ALLOWED);
            assertEquals(4096, samr.ACB_SMARTCARD_REQUIRED);

        SMBUtil.writeInt4(0, buffer, offset + 60);

        return buffer;
    }

    private byte[] createValidNegotiateResponseBufferWithContexts() {
        byte[] buffer = new byte[512];
        int offset = 0;

        // Structure size (65)
        SMBUtil.writeInt2(65, buffer, offset);

        // Security mode

    assertHashBytesThrowsCorrectExceptions(hashFunction);
    assertIndependentHashers(hashFunction);
    assertShortcutsAreEquivalent(hashFunction, 512);
  }

  static void assertHashByteBufferInvariants(HashFunction hashFunction) {
    assertHashByteBufferMatchesBytes(hashFunction);
    assertHashByteBufferExhaustsBuffer(hashFunction);

// [Buffer.ReadFrom]. As long as the [Buffer] has at least MinRead bytes beyond
// what is required to hold the contents of r, [Buffer.ReadFrom] will not grow the
// underlying buffer.
const MinRead = 512

// ReadFrom reads data from r until EOF and appends it to the buffer, growing
// the buffer as needed. The return value n is the number of bytes read. Any

    /** Maximum buffer size for IO operations */
    protected int maximumBufferSize = 0x10000;
    /** Maximum buffer size for SMB transaction operations */
    protected int transactionBufferSize = 0xFFFF - 512;
    /** Number of buffers to keep in cache */
    protected int bufferCacheSize = 16;
    /** Maximum size for list operations */
    protected int smbListSize = 65435;

* ⬆ Bump actions/setup-python from 2 to 4. PR [#5129](https://github.com/tiangolo/fastapi/pull/5129) by [@dependabot[bot]](https://github.com/apps/dependabot).
* 👷 Add Dependabot. PR [#5128](https://github.com/tiangolo/fastapi/pull/5128) by [@tiangolo](https://github.com/tiangolo).
* ♻️ Move from `Optional[X]` to `Union[X, None]` for internal utils. PR [#5124](https://github.com/tiangolo/fastapi/pull/5124) by [@tiangolo](https://github.com/tiangolo).

    protected String defaultEncoding;

    /** Number of bytes to read from input stream to determine character set encoding.
     * If you want to follow a html spec, use 512. */
    protected int preloadSizeForCharset = 2048;

    /**
     * Pattern for invalid URLs.
     */
    protected Pattern invalidUrlPattern = Pattern.compile("^\\s*javascript:|" //

 */
public class SitemapsHelper {
    private static final Logger logger = LogManager.getLogger(SitemapsHelper.class);

    /** The size of the preload buffer for checking file format. */
    protected int preloadSize = 512;

    /** Enable validation of sitemap entries. */
    protected boolean enableValidation = false;

    /** Maximum URL length according to sitemap specification. */
    protected static final int MAX_URL_LENGTH = 2048;